Primary English: Modal Verbs Error Clinic (10 Questions)
The fourth paper is an error clinic: it gathers the mistakes students repeat most often with modal verbs, covering the extra or wrong verb forms in can to, mustn’t to and should goes, plus mustn’t against don’t have to, has to against have to, May I against Can you, could for past ability and can’t be for a negative deduction. Ten items, each with an answer and a one-line note.
| Item | Detail |
|---|---|
| Questions | 10 questions |
| Suggested time | about 20 minutes |
| Difficulty mix | Error redo 10 |
| Chapter | Chapter: Primary English | Modal Verbs: can / must / should |
| Level | P6 |
| # | Answer | One-line note |
|---|---|---|
| 1 | She can swim very well. | Can is followed by the base verb with no to. |
| 2 | You mustn’t touch the wires. | Mustn’t also takes the base verb, so the to is dropped. |
| 3 | He should go to bed early. | Should takes the base verb, so goes becomes go. |
| 4 | mustn’t | A stated rule that forbids takes mustn’t, not don’t have to. |
| 5 | has to | A third person singular subject takes has to. |
| 6 | May | May I is the formal way to ask a teacher for permission. |
| 7 | could | Past ability takes could rather than can. |
| 8 | can’t | A negative deduction uses can’t be, never mustn’t be. |
| 9 | should | Should offers sensible advice. |
| 10 | don’t have to | The negative answer to Must I is don’t have to, meaning it is not necessary. |
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